[Octave-bug-tracker] [bug #66012] printing to the pdflatex device is slow

[Robert Jenssen]

URL:
  <https://savannah.gnu.org/bugs/?66012>

                 Summary: printing to the pdflatex device is slow
                   Group: GNU Octave
               Submitter: morgawr
               Submitted: Mon 22 Jul 2024 11:36:32 AM UTC
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 9.2.0
        Operating System: GNU/Linux
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Mon 22 Jul 2024 11:36:32 AM UTC By: Robert Jenssen <morgawr>
I use a local build of octave-9.2.0 with qt-6. The __octave_config_info__ is
attached.

Printing a random plot to the pdflatex device is slow:

$ cat src/test/print_latex_test.m
% print_latex_test.m

profile on

version

tic;
x=rand(1000,1);
plot(x);
print("x","-dpdflatex");
close;
toc;

tic;
x2=rand(1000,1);
plot(x2);
print("x2","-dpdflatex");
close;
toc;

profile off
profshow(5)

$ octave -q --no-gui src/test/print_latex_test.m
ans = 9.2.0-robj
Elapsed time is 17.7439 seconds.
Elapsed time is 0.412699 seconds.
   #      Function Attr     Time (s)   Time (%)        Calls
------------------------------------------------------------
  39           set    R       12.269      67.61          122
  21           get             5.078      27.98          538
  36 __go_uimenu__             0.231       1.27           48
 182 __go_delete__             0.214       1.18            2
 173       drawnow             0.164       0.90            6
Elapsed time is 17.5638 seconds.
Elapsed time is 0.415475 seconds.


The first plot takes 18s. The second plot in the session takes less than 1s.

For comparison, I installed the Fedora octave-8.4.0-6.fc40 package:

$ octave --no-gui -q src/test/print_latex_test.m
ans = 8.4.0
Elapsed time is 11.979 seconds.
Elapsed time is 0.412181 seconds.
   #      Function Attr     Time (s)   Time (%)        Calls
------------------------------------------------------------
  39           set    R        6.359      51.36          122
 173       drawnow             5.238      42.31            6
  36 __go_uimenu__             0.284       2.29           48
 182 __go_delete__             0.274       2.22            2
 133       findobj             0.043       0.35           14








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File Attachments:


-------------------------------------------------------
Name: __octave_config_info__.txt  Size: 24KiB
<https://file.savannah.gnu.org/file/__octave_config_info__.txt?file_id=56296>

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